Microdosimetry of monoenergetic neutrons [electronic resource].
- Published
- Arlington, Va. : National Science Foundation (U.S.), 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 29 pages : digital, PDF file
- Additional Creators
- Brookhaven National Laboratory, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Tissue spheres 0.25, 0.5, 1.0, 2.0, 4.0, and 8.0 μm in diameter were simulated using a wall-less spherical counter filled with a propane-based tissue-equivalent gas. Microdosimetric spectra corresponding to these site sizes were measured for five neutron energies (0.22, 0.44, 1.5, 6, and 14 MeV) and the related mean values {bar Y}{sub F} and {bar Y}{sub D} were calculated for several site sizes and neutron energies. An elaborate calibration technique combining soft x-rays, a ⁵⁵Fe photon source, and a ²⁴⁴Cm collimated source of alpha particles was used throughout the measurement. The spectra and their mean values are compared with theoretically calculated values for ICRU tissue. The agreement between the calculated and the measured data is good in spite of a systematic discrepancy, which could be attributed, in part, to the difference in elemental composition between the tissue-equivalent gas and plastic used in the counter, and the ICRU standard tissue used in the calculations.
- Report Numbers
- E 1.99:bnl--49779
bnl--49779 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
12/31/1993.
"bnl--49779"
"DE94007520"
"ER0000000/FY7800000"
": Grant CA-12536"
"Grant CA-13696"
Srdoc, D.; Marino, S.A. - Type of Report and Period Covered Note
- Topical; 12/31/1993 - 12/31/1993
- Funding Information
- AC02-76CH00016
AC02-78EV04733
View MARC record | catkey: 14793005